Now Foods Magnesium Glycinate, 240 Tablets - Supports Healthy Muscle and Nerve Functions - Non-GMO

Now Foods Magnesium Glycinate, 240 Tablets - Supports Healthy Muscle and Nerve Functions - Non-GMO

ASIN: B0CB984SHQ
Analysis Date: Oct 30, 2025 (re-analyzed Jan 13, 2026)

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Review Analysis Results

B
Authenticity Grade
15.00%
Fake Reviews
4.91
Original Rating
4.50
Adjusted Rating

Analysis Summary

The majority of these reviews for NOW Foods Magnesium Glycinate appear genuine, with approximately 85% showing authentic characteristics. While all reviews are marked as verified purchases, the sample contains a mix of detailed personal experiences and brief positive comments typical of Amazon reviews. The overall pattern suggests most customers are satisfied with the product's effects on sleep and cognitive function, which aligns with magnesium glycinate's known benefits.

Strong evidence of authenticity comes from several reviews containing specific personal context and detailed usage patterns. Review #1 mentions long-term use of NOW Foods supplements and specific improvements noticed within 30 days, including unexpected benefits to memory and mental clarity. Review #3 provides detailed personal medication preferences and dosage variations based on sleep needs. Review #4 offers particularly authentic context about perimenopause symptoms, specific supplement combinations (Magnesium L-threonate in morning), and mentions working with HRT and exercise.

Some concerns exist with a few reviews that show minimal content or generic praise. Review #2 contains vague marketing-like language ('Amazing product health with calmness of mind') without personal context. Review #8 consists of only two generic words ('Nice Excellent') without any product-specific information. Review #10 is a single word ('Recomendado') in Spanish, which could be genuine but provides no substantive content to evaluate.

Overall, this appears to be a legitimate product receiving predominantly genuine positive feedback. The few concerning reviews represent a small minority and may simply reflect customers who leave brief feedback rather than indicating organized manipulation. The detailed personal experiences in several reviews strongly support the authenticity of most feedback, with the product apparently delivering expected benefits for sleep and cognitive function to satisfied customers.

Key patterns identified in the review analysis include: Sleep improvement mentioned frequently, Cognitive benefits (focus, memory, brain fog) noted, Personal health contexts (perimenopause, medication preferences).

Review Statistics

619
Total Reviews on Amazon
-0.41
Rating Difference

Price Analysis

Now Foods Magnesium Glycinate is typically a mid-range supplement, but without a current Amazon price, comparison is limited. Given the lack of reviews, verify the seller's authenticity and compare prices with other retailers like iHerb or the brand's website. Wait for price visibility or consider established listings of the same product for reliable purchasing.

MSRP Assessment

Estimated MSRP: Unknown
Source: Unable to determine
Amazon Price: Unable to compare

Market Position

Positioning: Mid-range
Alternatives Range: $18-$45 for 240 tablets
Value: Now Foods typically offers good quality at competitive prices compared to premium brands like Pure Encapsulations or Thorne, though lower-cost alternatives exist.

Buying Tips

Best Time to Buy: Supplement sales often occur around New Year's resolutions (January) and back-to-school (August/September).
Deal Indicators: Look for Subscribe & Save discounts, coupon checkboxes, or multi-bottle bundles for better value.
Watch For: Zero reviews and 0.00 rating suggest this might be a new listing—verify seller reputation and check for established listings of the same product.
Price analysis generated by AI based on product category and market research. Actual prices may vary. Last analyzed: Jan 13, 2026

Understanding This Analysis

What does Grade B mean?

This product has good review authenticity with minor concerns. While most reviews appear genuine, we detected some patterns that warrant mild caution.

Adjusted Rating Explained

The adjusted rating (4.50 stars) represents what we estimate this product's rating would be if fake reviews were removed. This product's adjusted rating is lower than Amazon's displayed rating (4.91 stars), suggesting positive fake reviews may be inflating the score.

How We Detect Fake Reviews

Our AI analyzes multiple factors: language patterns (generic vs. specific), reviewer behavior (history, timing), temporal anomalies (review clusters), verification status, sentiment authenticity, and statistical outliers. No single factor determines a review is fake - we look at the combination of signals.

Important Limitations

No automated system is perfect. Sophisticated fake reviews can evade detection, and some genuine reviews may be incorrectly flagged. Use this analysis as one data point in your purchasing decision, not the only factor. Reading actual review content yourself is always valuable.

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